diff options
| author | Sean Young <sean@mess.org> | 2017-08-06 21:25:52 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-08-20 15:55:48 +0200 |
| commit | e5e26439d1c46c8a201b0d05c719e33f0f091802 (patch) | |
| tree | d4ad1aa893c13fe975129104f50392b2040003b0 /drivers/media/rc/rc-ir-raw.c | |
| parent | media: winbond-cir: buffer overrun during transmit (diff) | |
| download | linux-e5e26439d1c46c8a201b0d05c719e33f0f091802.tar.xz linux-e5e26439d1c46c8a201b0d05c719e33f0f091802.zip | |
media: rc-core: improve ir_raw_store_edge() handling
The gpio-ir-recv driver does many wakeups (once per edge); the saa7134
driver has special handling to only wakeup 15ms after the first edge.
Make this part of rc-core so gpio-ir-recv also benefits from
this (so a rc-5 keypress now causes 3 wakeups rather than 24).
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/rc/rc-ir-raw.c')
| -rw-r--r-- | drivers/media/rc/rc-ir-raw.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/media/rc/rc-ir-raw.c b/drivers/media/rc/rc-ir-raw.c index b6d256f03847..07a694298119 100644 --- a/drivers/media/rc/rc-ir-raw.c +++ b/drivers/media/rc/rc-ir-raw.c @@ -133,6 +133,11 @@ int ir_raw_event_store_edge(struct rc_dev *dev, enum raw_event_type type) dev->raw->last_event = now; dev->raw->last_type = type; + + if (!timer_pending(&dev->raw->edge_handle)) + mod_timer(&dev->raw->edge_handle, + jiffies + msecs_to_jiffies(15)); + return rc; } EXPORT_SYMBOL_GPL(ir_raw_event_store_edge); @@ -483,6 +488,13 @@ int ir_raw_encode_scancode(enum rc_type protocol, u32 scancode, } EXPORT_SYMBOL(ir_raw_encode_scancode); +static void edge_handle(unsigned long arg) +{ + struct rc_dev *dev = (struct rc_dev *)arg; + + ir_raw_event_handle(dev); +} + /* * Used to (un)register raw event clients */ @@ -504,6 +516,8 @@ int ir_raw_event_prepare(struct rc_dev *dev) dev->raw->dev = dev; dev->change_protocol = change_protocol; + setup_timer(&dev->raw->edge_handle, edge_handle, + (unsigned long)dev); INIT_KFIFO(dev->raw->kfifo); return 0; @@ -555,6 +569,7 @@ void ir_raw_event_unregister(struct rc_dev *dev) return; kthread_stop(dev->raw->thread); + del_timer_sync(&dev->raw->edge_handle); mutex_lock(&ir_raw_handler_lock); list_del(&dev->raw->list); |